The Muppet's Most Wanted trailer has just been released and as usual the film is littered with celebrity contributions. Tina Fey, Ty Burrell and our own Ricky Gervais star, with the likes of Salma Hayek, P Diddy, Christoph Waltz and many others making cameo appearances.

'A must-see for all Flight Of The Conchords fans!' trumpets the cover. Well, kind of – if you don't mind the fact that Conchords stars Bret McKenzie and Rhys Darby both have bit parts and Jemaine Clement has screen time amounting to about four seconds.